C#中怎么设置鼠标移到图片上时出现特效~比如图片加亮或者方法或者其他~

nearthesun 2009-01-26 02:37:59

我是个菜鸟呀~呵呵~各位高手帮忙啊~

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hechenqingtian 2009-01-28

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<html>
<head>
<base href="<%=basePath%>">

<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">

<style type="text/css">

img{

width:300px;
heigth:250px;
filter:alpha(opacity:50);
}

.over{
filter:alpha(opacity:100);
}

.out{
filter:alpha(opacity:50);
}
</style>

<script type="text/javascript">

function over(obj)
{
obj.className="over";
}

function out(obj)
{
obj.className="out";
}
</script>
</head>

<body>
<table border="0" width="800px">
<tr>
<td><img src="image/a.jpg" onmouseover="over(this)" onmouseout="out(this)" /></td>
<td><img src="image/b.jpg" onmouseover="over(this)" onmouseout="out(this)" /></td>
</tr>

<tr>
<td><img src="image/c.jpg" onmouseover="over(this)" onmouseout="out(this)" /></td>
<td><img src="image/d.jpg" onmouseover="over(this)" onmouseout="out(this)" /></td>
</tr>

</table>
</body>
</html>

hechenqingtian 2009-01-28

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足球中国 2009-01-28

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codeproject 上有个BUTTON的示例比较全比较好.

pp_shy 2009-01-28

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在MouseEnter事件中实现光照效果



Graphics MyGraphics = this.pictureBox1.CreateGraphics();

MyGraphics.Clear(Color.White);

Bitmap MyBmp = new Bitmap(this.pictureBox1.Image, this.pictureBox1.Width, this.pictureBox1.Height);

int MyWidth = MyBmp.Width;

int MyHeight = MyBmp.Height;

Bitmap MyImage = MyBmp.Clone(new RectangleF(0, 0, MyWidth, MyHeight), System.Drawing.Imaging.PixelFormat.DontCare);

int A = Width / 2; 

int B = Height / 2;

//MyCenter图片中心点，发亮此值会让强光中心发生偏移            

Point MyCenter = new Point(MyWidth / 2, MyHeight / 2);

//R强光照射面的半径，即”光晕”            

int R = Math.Min(MyWidth / 2, MyHeight / 2);

for (int i = MyWidth - 1; i >= 1; i--)

{

   for (int j = MyHeight - 1; j >= 1; j--)

   {

      float MyLength = (float)Math.Sqrt(Math.Pow((i - MyCenter.X), 2) + Math.Pow((j - MyCenter.Y), 2));

      //如果像素位于”光晕”之内                    

       if (MyLength < R)

      {

          Color MyColor = MyImage.GetPixel(i, j);

          int r, g, b;

          //220亮度增加常量，该值越大，光亮度越强                        

           float MyPixel = 220.0f * (1.0f - MyLength / R);

          r = MyColor.R + (int)MyPixel;

          r = Math.Max(0, Math.Min(r, 255));

          g = MyColor.G + (int)MyPixel;

          g = Math.Max(0, Math.Min(g, 255));

          b = MyColor.B + (int)MyPixel;

          b = Math.Max(0, Math.Min(b, 255));

          //将增亮后的像素值回写到位图                        

           Color MyNewColor = Color.FromArgb(255, r, g, b);

          MyImage.SetPixel(i, j, MyNewColor);

      }

   }

}

//重新绘制图片               

MyGraphics.DrawImage(MyImage, new Rectangle(0, 0, MyWidth, MyHeight));